Skip to content
Appointment timing depends on ZIP code, route capacity, and appliance type.
Whirlpool kitchen and laundry repair. Clear estimates before any work begins.
Call (844) 968-2053
Whirlpool service — Whirlpool Microwave F3H Code

Whirlpool

Whirlpool Microwave F3H Code Humidity Thermistor

Book a Repair (844) 968-2053
Daniel Reeves Written by Daniel Reeves Appliance Repair Content Specialist Published October 20, 2026

Whirlpool

Code overview at a glance.

The facts for this Whirlpool error, a plain-language snapshot, and what to confirm against your model number.

Error code F3H
Appliance Microwave
Content status Verified
Quick answer

Meaning of F3H and the reset sequence for Whirlpool over-the-range microwaves.

Model note: Whirlpool reuses codes across series and model years, so F3H may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.

Whirlpool

What this code may mean.

A plain-language reading of the code — always confirm against your model’s documentation.

There may be a problem with the Humidity Thermistor or the associated wiring.

What F3H indicates: a possible problem with the humidity thermistor or its wiring.

The help article is about over-the-range microwave models.

The manual’s reset

  • Kill power for one (1) minute, via the breaker or by unplugging.
  • Then put the breaker back on.
  • Keep watching for one (1) minute to see if F3H reappears.
  • Then check normal operation.

If it comes back: F3H again after the reset means it is time for a qualified technician.

Codes in the same area

F3H1 is close by and is about the humidity sensor. Compare with F3T3, which concerns the hood temperature thermistor. F2H2 covers the vent fan and light switch.

Service coverage for this microwave

Metro areas served: Miami, New York, Houston, Los Angeles and San Diego. Reach out at (844) 968-2053 with F3H, the model number and your reset result in hand. Our oven repair page covers the wider cooking range.

Source: Whirlpool Product Help: F3H – Error Code – Over-the-Range Microwave

Whirlpool

Safety warning before you continue.

Stop immediately if you notice smoke, sparks, a burning smell, gas odor, or water near electrical parts.

Important

Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.

Whirlpool

Seeing this code on your appliance?

Book an Whirlpool appliance service visit for a clear estimate and approval before any repair.

Experienced technicians, clear diagnostics, and workmanship coverage on completed repairs.

Book a Repair (844) 968-2053

Whirlpool

Ready to restore your Whirlpool appliance?

Book a repair online or call us — clear estimates, approval before any work, and a workmanship warranty on completed repairs.

Book a Repair (844) 968-2053

Whirlpool

Tell us what’s wrong — we’ll take it from there.

Share a few details and we’ll confirm an appointment. Prefer to talk? Call us and we’ll help right away.

Prefer to call? (844) 968-2053
  1. Share the symptom Tell us the Whirlpool model and what’s going wrong.
  2. Confirm a window We’ll schedule a visit that fits your day.
  3. Approve before work You get a clear estimate — nothing starts without your OK.
Phone (844) 968-2053
Email info@whirlpoolservicecenter.support
Hours Mon–Sat: 8:00 AM – 7:00 PM
Service area Serving Miami, New York, Houston, Los Angeles and San Diego metro areas.
Response time Appointment timing depends on ZIP code, route capacity, and appliance type.
(844) 968-2053 Book a Repair